Taco 1611E3E1L Cast Iron Pump Less Motor

For HVAC replacement work, Taco 1611E3E1L supplies a cast iron pump end for hydronic circulation systems that need a compatible motor and dependable flange alignment. This 1600 Series in-line centrifugal pump is supplied without a motor, making it suitable for repair projects where the existing 1725 RPM NEMA 56 frame motor remains serviceable or requires replacement. Confirm shaft fit, rotation, impeller trim, and system fill before startup to prevent dry running, seal damage, and flow interruption.

The Taco 1611E3E1L accepts a 1/4 to 1/2 HP motor and delivers up to 85 GPM with a motor-dependent maximum head of 40 feet. Its cast iron casing, one-piece cast bronze impeller, alloy steel shaft with cupro-nickel sleeve, and ceramic-face EPT mechanical seal support HVAC pump replacement service. The 1-1/2-inch two-bolt flange connection, 175 PSI pressure rating, and 40°F to 250°F fluid range suit many closed-loop heating and cooling systems, but voltage, amperage, thermal protection, and final motor selection are not included.

Key Features of Taco 1611E3E1L

- 1600 Series in-line centrifugal pump end for HVAC replacement applications.
- Supplied less motor and designed for a 1/4 to 1/2 HP motor.
- Requires a 1725 RPM NEMA 56 frame motor.
- Up to 85 GPM flow and up to 40 feet of motor-dependent head.
- Cast iron casing manufactured to ASTM A48 Class 30.
- One-piece cast bronze impeller supports hydronic pump service.
- Alloy steel shaft with cupro-nickel sleeve helps protect the shaft assembly.
- Ceramic-face and EPT elastomer mechanical seal, 175 PSI maximum pressure, 250°F maximum fluid temperature, and 12-inch flange-to-flange length.
- Dry weight is 18 pounds; voltage, amperage, motor, thermal protection, and warranty terms require confirmation.

Why the Taco 1611E3E1L Stands Out

This Taco HVAC pump replacement end allows contractors to replace the hydraulic assembly without automatically replacing a compatible motor and electrical components.

- Build: ASTM A48 cast iron, a cast bronze impeller, alloy steel shaft, cupro-nickel sleeve, and ceramic-face seal provide a service-focused pump-end construction.
- Value: Reusing a compatible motor can reduce replacement cost, electrical changes, and system downtime, provided shaft dimensions and motor condition meet installation requirements.
- Audience: HVAC contractors, hydronic service technicians, boiler maintenance teams, commercial building engineers, and pump repair specialists can use this model for matched replacement work.

Applications & Use Cases

Use the Taco 1611E3E1L for HVAC pump replacement in commercial heating loops, chilled-water circuits, air-handler systems, and hydronic equipment rooms. Its 12-inch flange-to-flange length, 18-pound dry weight, and 1-1/2-inch two-bolt connections help installers plan pipe spacing, valve clearance, lifting access, and motor service room before fitting the replacement pump end.

Warranty & Support

- Factory warranty terms were not included in the supplied product data. Confirm warranty duration, motor compatibility, installation requirements, and replacement-part support before purchase.
- Inspect the shaft sleeve, impeller, mechanical seal, flange gaskets, and motor coupling during installation.

Flush debris from the system, verify impeller rotation, check for seal leakage, and confirm the selected motor matches the pump-end requirements before commissioning. Purchase the Taco 1611E3E1L cast iron HVAC pump end from [store domain] for authentic equipment, applicable factory warranty protection, and pump support.